seller as well as supplier

i am the trader of cement and transporter with same gst
number ,and I have two seperate bill books for cement and freight .

when I sold the cement ,i have to deliver to the residence of my customer for that I am charging freight

i am issuing invoice for cement and cash receipt for freight .

on that cash receipt does not have any details about consignor and consignee etc

my doubts are

1) is that bill treated as consignment note or not?

2) whether a registered transporter should issue consignment note or not?